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Magneto-optical response of twisted nematic cells

Magneto-optical response of twisted nematic cells
Magneto-optical response of twisted nematic cells
We construct a theoretical model for a thermotropic ferronematic (magnetic liquid crystal colloid) in an asymmetric twisted nematic cell, subject to in-plane magnetic fields. At low colloidal concentrations, the nematic director is unchanged by strong fields, the magnetic director principally responds to its coupling to, and the suspension density peaks sharply where and are co-aligned. At higher concentrations feedback between and aligns over a significant part of the cell, and the suspension divides into a region where is parallel toH, and a region where it is not. We also make calculations of the optical properties of this cell.
liquid crystal, ferroparticle, magnetic field, twisted cell
1542-1406
Zadorozhnii, V.I.
7d2e7c5a-b52c-4dd1-a7fe-cd8b708cd2ab
Bashtova, K.V.
adf32905-df4c-41d8-8c0d-a1da4db13180
Reshetnyak, Victor Y
cfa84aa7-1edb-4583-95cd-36fa3058a976
Sluckin, Timothy J.
8dbb6b08-7034-4ae2-aa65-6b80072202f6
Zadorozhnii, V.I.
7d2e7c5a-b52c-4dd1-a7fe-cd8b708cd2ab
Bashtova, K.V.
adf32905-df4c-41d8-8c0d-a1da4db13180
Reshetnyak, Victor Y
cfa84aa7-1edb-4583-95cd-36fa3058a976
Sluckin, Timothy J.
8dbb6b08-7034-4ae2-aa65-6b80072202f6

Zadorozhnii, V.I., Bashtova, K.V., Reshetnyak, Victor Y and Sluckin, Timothy J. (2010) Magneto-optical response of twisted nematic cells. Molecular Crystals and Liquid Crystals. (doi:10.1080/15421406.2010.485066).

Record type: Article

Abstract

We construct a theoretical model for a thermotropic ferronematic (magnetic liquid crystal colloid) in an asymmetric twisted nematic cell, subject to in-plane magnetic fields. At low colloidal concentrations, the nematic director is unchanged by strong fields, the magnetic director principally responds to its coupling to, and the suspension density peaks sharply where and are co-aligned. At higher concentrations feedback between and aligns over a significant part of the cell, and the suspension divides into a region where is parallel toH, and a region where it is not. We also make calculations of the optical properties of this cell.

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Published date: 2010
Additional Information: DOI: 10.1080/15421406.2010.485066
Keywords: liquid crystal, ferroparticle, magnetic field, twisted cell

Identifiers

Local EPrints ID: 153535
URI: http://eprints.soton.ac.uk/id/eprint/153535
ISSN: 1542-1406
PURE UUID: cf7c5f10-b6da-4e12-a0bf-d66ca49aa117
ORCID for Timothy J. Sluckin: ORCID iD orcid.org/0000-0002-9163-0061

Catalogue record

Date deposited: 20 May 2010 10:13
Last modified: 08 Jan 2022 02:31

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Contributors

Author: V.I. Zadorozhnii
Author: K.V. Bashtova
Author: Victor Y Reshetnyak

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